这款名为“大单买入分时”的通达信分时主图指标，是一款专为短线交易者打造的主力资金监控与分时买卖点提示工具。它深度融合了分时大单异动、机构资金流向以及动态支撑压力位等核心逻辑，能帮助投资者在盘中实时洞察主力意图。
核心功能解析
机构大单监控：指标能自动识别单笔成交金额超过500万及1000万的超大单，并通过固定文字实时显示“机构买盘”与“机构卖盘”的金额，直观呈现主力资金进出力度。
智能买卖信号：当股价在分时图中有效突破智能计算的支撑位时，主图上会直接出现醒目的黄色“买”字提示，辅助投资者进行分时低吸或突破跟进。
资金攻击力度：左下角实时显示“资金攻击”百分比及“三日量比总和”，帮助判断当前盘面的资金活跃度与多空强弱对比。
实战使用方法
看资金：重点关注“机构买盘”是否持续大于“机构卖盘”，且“资金攻击”数值维持高位，这代表主力资金正在积极抢筹。
抓买点：当分时线回踩支撑位不破，或放量突破支撑位出现“买”字信号时，是绝佳的短线买入时机。
避风险：若股价跌破支撑位，且机构卖盘显著放大，则需警惕主力出货，应果断规避或减仓。
{大单买入分时分时主图}
DH1:=MAX(DYNAINFO(3),DYNAINFO(5));
DL1:=MIN(DYNAINFO(3),DYNAINFO(6));
DR:=DH1-DL1;
DMID:=(DH1+DL1)/1;
SUPPORT:DL1+DR*1/8,POINTDOT,COLORMAGENTA;
SUPPORT1:DL1+DR*0.5/8,POINTDOT;
BOTTOM_REF:DL1+DR/3,POINTDOT,COLORBLUE;
STICKLINE(C<SUPPORT,SUPPORT,C,2,0),COLORRED;
H2:=MAX(DYNAINFO(3),DYNAINFO(5));
L2:=MIN(DYNAINFO(3),DYNAINFO(6));
P2:=H2-L2;
SUPPORT_A:L2+P2*0.5/8,COLORMAGENTA;
DRAWTEXT(LONGCROSS(SUPPORT_A,C,2),C,'买'),COLORYELLOW,LINETHICK4;
AMOUNT_W:=AMO/10000;
CAPITAL1:=AMOUNT_W>500 AND AMOUNT_W<1000;
CAPITAL2:=AMOUNT_W>1000;
TXT:=STRCAT(VAR2STR(AMOUNT_W/10000,1),'亿');
ZBGSVOL:=((HSL*0.50+REF(HSL,1)*0.33)+(REF(HSL,2)*0.17))*SUM(C,FROMOPEN)/FROMOPEN;
ZBGSUP:=SUM(IF(C>REF(C,1),ZBGSVOL*V,0),FROMOPEN),COLOR0000FF,LINETHICK0;
ZBGSDN:=-SUM(IF(C<REF(C,1),ZBGSVOL*V,0),FROMOPEN),COLOR00FF00,LINETHICK0;
ZBGSFLOW:=ZBGSUP+ZBGSDN,COLORSTICK;
DRAWTEXT_FIX(1,0.75,0.92,0,' '),COLORYELLOW;
ZBGSRATIO:=ZBGSFLOW/SUM(V,FROMOPEN)*100,COLORRED,LINETHICK1;
ZBGSCAP:=IF(ZBGSRATIO>=0,(ZBGSRATIO+50),100-ABS((ZBGSRATIO-50)));
CAP_UP:=SUM(IF(C>REF(C,1),V,0),FROMOPEN),STICK,COLORRED;
CAP_DN:=-SUM(IF(C<REF(C,1),V,0),FROMOPEN),STICK,COLOR00FF00;
CAP_NET:=CAP_UP+CAP_DN,COLORSTICK;
CAP_RATIO:=CAP_NET/SUM(V,FROMOPEN)*100,COLOR00FFFF,LINETHICK1;
CAP_FLOW_RATIO:=IF(CAP_RATIO>=0,(CAP_RATIO+100)/2,100-ABS((CAP_RATIO-100)/2));
DRAWTEXT_FIX(1,0.000,0.88,0,STRCAT(STRCAT('【资金攻击】',CON2STR(ZBGSCAP,2)),' ％买')),COLORRED;
DRAWTEXT_FIX(1,0.980,20,1,'， HTTP://'),COLOR333333;
VAR11:=(VOL/C)/3;
VAR22:=SUM(IF(((VAR11>40) AND (C>REF(C,1))),VAR11,0),0);
VAR33:=SUM(IF(((VAR11>40) AND (C<REF(C,1))),VAR11,0),0);
VAR44:=SUM(IF(((VAR11<40) AND (C>REF(C,1))),VAR11,0),0);
VAR55:=SUM(IF(((VAR11<40) AND (C<REF(C,1))),VAR11,0),0);
VAR66:=VAR22+VAR33+VAR44+VAR55;
INST_BUY:=VAR22,LINETHICK2;
INST_SELL:=VAR33,LINETHICK2;
TRADE_AMOUNT:=V*C/100,NODRAW;
MAIN_UP:=SUM(IF(((TRADE_AMOUNT/8>20) AND (C>REF(C,1))),TRADE_AMOUNT,0),0);
MAIN_DN:=SUM(IF(((TRADE_AMOUNT/8>20) AND (C<REF(C,1))),TRADE_AMOUNT,0),0);
MAIN_TOTAL:=MAIN_UP+MAIN_DN;
MAIN_VOL3:=MA(VOL,3);
SSLB:=STRCAT(STRCAT('三日量比总和:',CON2STR((VOL/FROMOPEN)/(MAIN_VOL3/240)*100,0)),'%');
BAAVAR3:=STRCAT(STRCAT('买入量:',CON2STR((100*(MAIN_UP-MAIN_DN))/MAIN_TOTAL,0)),'%');
DRAWTEXT_FIX(1,0,0.18,0,BAAVAR3),COLOR00FFFF;
DRAWTEXT_FIX(1,0,0.26,0,SSLB),COLORYELLOW;
DRAWTEXT_FIX(1,0.0,1-0.05,0,STRCAT(STRCAT('【机构买盘】',CON2STR(INST_BUY,2)),'万')),COLORRED;
DRAWTEXT_FIX(1,0.18,1-0.05,0,STRCAT(STRCAT('【机构卖盘】',CON2STR(INST_SELL,2)),'万')),COLOR00FF00;
